Category Archives: ESP32

Global Status Board Keeps Eye on COVID-19 Situation

When it comes to keeping abreast of the COVID-19 pandemic, there are basically two schools of thought. Some people would rather not hear the number of confirmed cases or deaths, and just want to focus on those who recovered. That’s fair enough. But others want to have all of the …read more

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Posted in annunciator, api, Covid-19, ESP32, led hacks, Microcontrollers, wall mounted | Leave a comment

DIY ESP32 Alarm System Leverages 433 MHz Sensors

There’s a huge market for 433 MHz alarm system hardware out there, from PIR motion detectors to door and window sensors. If you want to put them to work, all you need is a receiver, a network-enabled microcontroller, and some code. In his latest video, [Aaron Christophel] shows how easy …read more

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Posted in 433 mhz, arduino alarm system, ESP32, home alarm system, home automation, home hacks, Microcontrollers, telegram, wireless hacks | Leave a comment

Using the Steam Controller with LEGO Motors

While Valve’s Steam Controller was ultimately a commercial failure, there’s no denying it’s an interesting piece of hardware. With dual trackpads, a wealth of buttons, and Bluetooth capability, it could be the ideal way to control your next build. Thanks to a recent project by [geggo], now you’ve even got …read more

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Posted in bluetooth, ESP32, h-bridge motor controller, lego, Microcontrollers, Steam Controller, toy hacks | Leave a comment

How Constant Is Your Choice Of Lights?

The move from incandescent filament lamps to fluorescent, and then LED lighting over the last couple of decades has delivered immense benefits in terms of energy saving, but had brought with it problems for people sensitive to flicker or to too much of a particular set of wavelengths. It’s not …read more

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Posted in ESP32, flicker, home hacks, light, M5Stick | Leave a comment

Esper Makes Virtual Reality From Live Reality

There’s a scene in Bladerunner where Deckard puts a photograph in a magical machine that lets him zoom and enhance without limit, and even see around obstacles. In today’s climate, this is starting to seem more plausible, what with all the cameras everywhere. [Jasper van Loenen] explores this concept in …read more

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Posted in art, ESP32, ESP32 camera, Virtual Reality, vr | Leave a comment

LoRa Mesh Network with Off-the-Shelf Hardware

An ideal application for mesh networking is off-grid communication; when there’s no cellular reception and WiFi won’t reach, wide-area technologies like LoRa can be used to create ad hoc wireless networks. Whether you’re enjoying the outdoors with friends or conducting a rescue operation, a cheap and small gadget that will …read more

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Posted in emergency communications, ESP32, LoRa, mesh network, rescue communications, signal, software hacks, wireless hacks | Leave a comment

Lil’ ESP32 Bot Does Remote Surveillance, And It’s Easy

Digital cameras have been around for a long time, as have small remote control robotics platforms. However, combining the two has really only come into its own in the last decade or so, as more bandwidth has become available to the home tinkerer. This ESP32-CAM surveillance bot is a great …read more

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Posted in ESP32, ESP32-CAM, robot, robots hacks | Leave a comment

MQTT And The Internet Of Conference Badges

Today, nearly every modern consumer device wants to connect to the Internet for some reason. From your garage door opener to each individual smart bulb, the Internet of Things has arrived in full force. But the same can’t be said for most of our beloved conference badges. Wanting to explore …read more

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Posted in badgelife, conference badge, ESP32, featherwing, mqtt, Network Hacks, networking, RGB LED, wearable hacks | Leave a comment

Sort the Rainbow with an Algorithm Machine

When you’re trying to learn how an algorithm works, it’s not always easy to visualize what’s going on. Well, except for maybe binary sort, thanks to the phone book. Professor [thatguyer] is a computer science teacher who wanted a way to help his students visualize the process of algorithms and …read more

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Posted in algorithm, ESP32, Microcontrollers, rotary encoder, ws2812 | Leave a comment

Poking Around the Wide World of Bluetooth

Bluetooth is a technology with a very interesting history. When it first came around in the late 1990s, it promised to replace the mess of wires that was tucked behind every desk of the day. Unfortunately, the capabilities of early Bluetooth didn’t live up to the hype, and it never …read more

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Posted in Arduino Nano 33 BLE, ble, bluetooth, Bluetooth Classic, bluetooth low energy, ESP32, Microcontrollers, wireless, wireless hacks | Leave a comment